The Willamette Meteorite, referred to as Tomanowos or "Spirit Power" by the Clackamas Chinook people, is the largest space rock found in North America and one of the biggest iron meteorites in the world. It weighs about 15.5 short tons, which is equal to roughly 31,000 pounds or 14,150 kilograms. This large interstellar object is approximately 10 feet in length, 6.5 feet in width, and 4.25 feet in height. Its composition includes over 91% iron, 7.6% nickel, and small amounts of cobalt, gallium, germanium, and iridium. It is believed to be a fragment of the metallic core of a differentiated planetesimal that formed in the early stages of the solar system's development.
 |
| The Willamette Meteorite, also known as Tomanowos, is a massive iron meteorite. |
The Willamette Meteorite: Secrets of North America’s Largest Space Rock
A Glacial Journey to Oregon: One of the meteorite's most notable geological features is the lack of an impact crater at the location where it was first found near West Linn, Oregon. Scientists have determined that the meteorite originally hit Earth thousands of years ago in a region far to the north, possibly in what is now Montana or Canada.
During the last Ice Age, about 13,000 years ago, the meteorite became trapped within a large continental glacier. When a massive glacial dam broke, it triggered the catastrophic Missoula Floods. An ice block containing the meteorite floated down the Columbia River basin. As the floodwaters reached the Willamette Valley, the iceberg came to a stop and melted, leaving the heavy iron rock on the fertile soil. Over time, water reacting with iron sulfides formed deep, basin-like cavities that are now a distinctive part of its shape.
Image-Source
 |
| The Willamette Meteorite weighs about 15.5 tons, making it an extraordinary space rock. |
Image-Source
Willamette Meteorite, Oregon
Sacred Spirit Anchor of the Clackamas: Before the arrival of Euro-American settlers, Indigenous peoples of the Willamette Valley viewed Tomanowos (T’əmanəwas) as a sacred stone that connected the sky and Earth. The Clackamas Chinook used water collected from the hollows within the meteorite for medicinal purposes, spiritual rituals, and warrior ceremonies. Sending young members of the tribe to the stone on dark nights was a significant rite of passage.
 |
| Its distinctive pits and weathered surface reveal the meteorite’s long history on Earth. |
Image-Source
Tomanowos: The Indigenous History of the Meteorite
The 1902 Theft and Legal Precedent: In 1902, Ellis Hughes, a miner living near West Linn, identified the celestial object on land owned by the Oregon Iron and Steel Company. Hughes spent over 90 difficult days building a wooden cart with log rollers and pulling the 15-ton stone three-quarters of a mile to his own property with the intention of selling it commercially. When the mining company discovered his actions, they filed a lawsuit. The legal case, known as Oregon Iron & Steel Co. v. Hughes, reached the Oregon Supreme Court, which in 1905 ruled that meteorites are natural parts of the land they are found on rather than personal property.
 |
| This enormous iron meteorite is one of the most famous meteorites in North American history. |
Image-Source
Museum Home and Historic Repatriation Accord: In 1905, philanthropist Sarah Tappan Hoadley (Mrs William E.Dodge) bought the meteorite for $26,000, which is equivalent to about $930,000 today, and donated it to the American Museum of Natural History in New York City. Since 1906, it has been a key exhibit in the museum's astronomical collection. In 1999, the Confederated Tribes of Grand Ronde asked for the return of Tomanowos under the Native American Graves Protection and Repatriation Act (NAGPRA).In 2000, the tribe and the museum reached an agreement: the museum keeps the meteorite for public display, while tribal members are allowed private ceremonies each year, honoring both its scientific and spiritual importance.
 |
| This enormous iron meteorite is one of the most famous meteorites in North American history. |
Image-Source
Conclusion
The Willamette Meteorite, also known as Tomanowos, is one of the most fascinating meteorites in the United States. This massive iron meteorite has a remarkable history, enormous size, and deep cultural significance. From its discovery in Oregon to its display at the American Museum of Natural History, the Willamette Meteorite continues to attract curiosity. Its story makes it a remarkable example of space rocks, meteorite history, and mysterious natural wonders.
Sources & References:
No comments:
Post a Comment